Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/2015Fall/FonsecatagP2990.pdf Дата изменения: Sat Mar 7 21:34:19 2015 Дата индексирования: Mon Apr 11 16:09:04 2016 Кодировка: Поисковые слова: http astrokuban.info astrokuban

Proposal Identification No.:

P2990 Arecibo Observatory

Date Received: 2015-Mar-02 03:01:52 William E. Gordon Telescope Observing Time Request COVER SHEET

Section I - General Information
Submitted for Mar 1 2015. This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Time Requested this semester: Hours Next Semester: Hours already used for this pro ject: Additional Hours required to complete pro ject: Minimum Useful Time: Expected Data Storage: Prop osal Title: ABSTRACT: Regular Pulsars Galactic 52.75 4.5 0 90 minutes less than 100 GB

Long-term Timing of the Relativistic Binary Pulsar PSR B1534+12

Pulsars in relativistic binary systems have provided the most rigorous tests of gravitation in strong fields to date, and PSR B1534+12 continues to be a valuable high-precision laboratory for gravitational physics. The PUPPI backend provides even greater opportunities for substantial improvements in relativistic-parameter precision, significant measurement of relativistic spin precession, and additional pulsar astrophysics as described below. We request 1) six 90-minute epochs (approximately LST 1430-1600) over the course of the next observing year, and 2) a campaign of 14 consecutive observing days (LST 1345-1700) plus one track (LST 1800-2045) of the polarization calibrator PSR B1929+10, preferably to be scheduled between July and August 2015. Outreach Abstract: Los pulsares han demostrado ser laboratorios excepcionales para la comprension de la fisica gravitacional en ambientes extremos. Estamos proponiendo a observar PSR B1534+12, un pulsar en orbita con una otra estrella de neutrones, para probar la gravedad en "campos fuertes." Los parametros de la orbita cambiaran segun la relatividad general; vams a seguir para medir estos cambios para probar la teoria de Albert Einstein y verificar sus predicciones. Tambien vamos a utilizar los mismos datos para investigar otros efectos fisicales que podemos medir usando los pulsares.

Name Emmanuel Fonseca Ingrid H Stairs

Institution The University of British Columbia The University of British Columbia

E-mail efonse stairs@astro.ubc.ca

Phone 604-218-5426 604-822-6796

Student G no

1


Additional Authors
Thorsett, Stephen E. (thorsett@willamette.edu)

This work is part of a PhD thesis.

Remote Observing Request

Observer will travel to AO X Remote Observing In Absentia (instructions to operator)

Section I I - Time Request
The following times are in LST. For these observations night-time is not needed.

Begin ­ End Interval­Interval 1430 ­ 1600 1345 ­ 1700 1800 ­ 2045 ­

Days Needed at This Interval 3 14 1

Time Constraints (Must Be Justified in the Prop osal Text) We request three 90-minute sessions (LST 1430-1600) and a campaign session of 14 consecutive full-track days (LST 1435-1700) of PSR B1534+12 during the first semester. We prefer that all 90-minute sessions (three in the first semester and three in the second) be evenly spaced over the whole observing year (i.e. about 50 days apart), and that the campaign session takes place between July-August 2015. We also request one track of the polarization calibrator PSR B1929+10 (LST 1800-2045) during one of the 14 campaign days.

Next Semester Time Request

2


Begin ­ End Interval­Interval 1430 ­ 1600 ­ ­ ­

Days Needed at This Interval 3

Time Constraints (Must Be Justified in the Prop osal Text) See above note

Section I I I - Instruments Needed
430 G L-wide

Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

Section IV - RFI Considerations Frequency Ranges Planned
422 - 442 MHz 1150 - 1730 MHz This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. This proposal requires coordination with GPS L3 at 1381 MHz.

Section V - Observing List Target List
Ob ject RA (J2000) Dec (J2000) LST range ----------------------------------­ B1534+12 15h37m09s 11d55m55s 1430-1600

3